系統坐力 的英文怎麼說
中文拼音 [xìtǒngzuòlì]
系統坐力
英文
system resistance-
The dissertation has expounded following aspects : the shanghai ' s position in the publication history before it was forced to open up ; the city ' s convergency effect and the formation of three publication systems : missionary publication, government publication, and civilian publication ; the strengthening of publication ' s modernity and the rising of national publication ; the interrelation and integration of publication and city ; the relation between publication and shanghai ' s city civilization. thus, it has revealed the impetus and the developping process of modern shanghai publication ' s sharp rising
通過對上海開埠前在出版史坐標系中的位置、都市的集聚效應與教會出版、官辦出版、民辦出版三大出版系統的形成、出版現代性的增強與民族出版業的崛起、出版業與都市社會、出版業與都市文化的互動與整合等方面的論述，清晰地揭示了近代上海出版業迅速崛起的動力因素和發展軌跡。Fourth, the paper treats two kinds of hoisting projects of high alititude construction in bulk and member assembly, hositing machine and plan layout, setting up scaffold and joints, and installing trunks, branches and joints etc. then in detail discusses the method which applys total station to measure three - dimensional coordinate of dendriform structure, including selecting survey sign points, creating survey system and converting survey coordinate system etc. the paper also deep research on the welding performance, welding method, welding process, welding stress and control, welding strain and rectification, weld defects analysis and weld quality inspection, and so on complicated heterogeneity steel weld proplems
接著系統的論述了高空散裝法和分單元安裝法兩種樹狀結構吊裝方案，樹狀結構吊裝機械及平面布置，樹狀結構胎架及節點的搭設，以及樹狀結構樹干、樹枝和節點的吊裝工藝等諸多工藝問題。詳細的論述了採用全站儀對樹狀結構進行空間三維坐標測量的方法，包括測量標志點的選取、測量系統的建立及測量坐標的轉換等問題。深入地研究了樹狀結構可焊性、焊接方法、焊接工藝、焊接應力及控制、焊接變形及矯正、焊接缺陷分析及焊接質量檢查等復雜的異種鋼焊接問題。Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained
人體脊柱動力學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物力學以及研究人體脊柱耐受沖擊載荷的極限問題都具有重要意義.首先發展了凱恩方程的休斯頓方法，使其可應用於變形體連接的多體系統，並以此理論為依據建立人體整椎脊柱沖擊動力學模型，此時考慮脊柱的大位移運動，每個椎骨的變形相對椎間盤的變形小得多，把脊柱看成由剛體（椎骨）和變形體（椎間盤）組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合，最後得到腰椎間關節剛度系數因子和阻尼系數因子The 3d coordinate measurement machine form usa, universal tool microscope from germany, intellectual flatness check device, metalloid graphic analyzer, electric and pneumatic measurement instruments and high performance steering test equipment ensure the products quality and play the important role for the products development
從國外進口的三坐標測量儀、德國萬能工具顯微鏡、智能平面度檢查儀、金相圖像分析系統、電動量儀、氣動量儀和日本的高性能動力轉向系統試驗設備，保證動力轉向器的性能質量。Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點，提出了以艇體坐標系為運動坐標系，運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想；將所建立的矢量形式的動力學模型展開整理，獲得了狀態矩陣形式的獵雷聲納基陣動力學方程，為系統動力學模型的實用化奠定了基礎。Compared with the passive car suspension, the semi - active car suspension system with the intelligent mr damper can control the damping force automatically with the computer control and then enhance the ride comfort and handling stability of the car effectively
與傳統的汽車被動懸架系統相比，裝有磁流變阻尼器的半主動懸架系統，可以根據路面狀況和車輛運行狀態，在計算機的控制下自動調節阻尼力，大大提高了汽車乘坐的舒適性和行駛安全性。Tracking performance is bad to anti - jamming and unstable in cartesian coordinate using ekf because of the bearing - only problem existing in the ir sensor
由於紅外傳感器只能獲得角測量信息，在直角坐標系下子跟蹤系統不穩定，抗干擾能力差。In this article, the shp measure system based on the hardware of pci - 9114 ( daq ) and coordinator u511 is developed in vc + +. this system is good at getting the pressure data in the space mesh and processing it into velocity, total and static pressures and the field picture
本文通過vc + +開發了數據採集和處理一體化的基於pci - 9114數據採集卡和u511坐標控制器的七孔探針測試系統，該系統能自動採集空間網格點上的壓力數據，然後處理成所需的速度和總靜壓數據，並完成初步的流場繪圖。The use of the rapid - fire revolving barrel gun successfully solves the contradiction between high firing rate, long life time and small recoil, but on the other hand brings on a new problem to naval gun fire control system
摘要速射轉管炮的使用成功地解決了射速高、壽命長、后坐力小三者之間的矛盾，但另一方面也給艦炮火控系統帶來了新的問題。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。The very important works by the researchers in the modeling and control for flexible manipulators are introduced ; the equations of the non - holonomic constrain and dynamics are formulated. on the base of dynamic model function derived by the planar two - link flexible manipulator, the model function can be obtained by coordinate transformation ; at last the control scheme based on model of the system is put in to use to insure track desired trajectory of joint angle
在第四章中，首先，我們對柔性機械臂的動力學建模和系統控制問題做了比較全面的介紹；然後，運用lagrange方程並結合假設模態法建立了平面兩桿柔性空間機械臂系統的動力學方程。在此基礎上，通過坐標變換導出了以可測關節角為控制輸出變量的系統控制模型，基於此控制模型提出了柔性空間機械臂關節運動的動力學優化控制方案。A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path
本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。In arbitrary curvilinear coordinate systems, three dimensional turbulent combustion flow fields of the three kinds of turbofan engine afterburner with the longitudinal heat shield 、 outer cold flow and the jet nozzle are simulated. the three - dimensional body - fitted grids are generated by an elliptical grid generation procedure and zone method
本文在任意曲線坐標系統下對三種帶有縱向隔熱屏、外冷卻通道和尾噴管的渦扇發動機加力燃燒室的三維紊流燃燒流場進行數值模擬。This thesis devoted to study three - dimensional data stored in database, three - dimensional optimization, the corresponding algorithm of two - dimensional data and three - dimensional data and principle of interactive technical application of virtual reality with three - dimensional model at the theoretical research. the goal of technical research is to develop a set of interactive system based on virtual reality and web with the ordinary computer, namely create a real - time and lifelike virtual reality environment without special hardware equipment, and applies this environment to the interactive system like inquiring, thus to set up a kind of high - quality interactive visiting and inquiring system based on technology of a new generation virtual reality
理論研究的目標致力於三維數據在數據庫中的存儲、三維模型的優化、二維坐標與三維坐標的對應演算法及虛擬現實互動式技術應用的原理；技術研究的目標是在web環境下，利用普通微機開發出一套基於虛擬現實技術的互動式系統，即在無需特殊硬體設備的條件下，能夠創造一個實時逼真的虛擬現實環境，並將此環境應用於查詢等互動式過程，從而建立起一種基於新一代虛擬現實技術的高質量的互動式訪問與查詢系統。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。Incorporation of kones mature escalator technology, advanced micro - computer control system, high strength truss structure, classical driving system, and completed safety devices, fully ensure our products safe, reliable, endurable and bring steady and comfortable riding. refine craftwork, fluent lines and elegant style form the combination of practical riding function and visual enjoyment. frequency conversion technology selected makes the escalator more energy - saving
引進通力成熟的自動扶梯技術，採用先進的微機控制系統，高強度的桁架結構經典的驅動技術完善的保護裝置，使產品安全可靠耐用，乘坐平穩安靜舒適精緻的工藝流暢的線條優雅的造型，使產品兼有乘坐的實用功能與視覺的裝飾效果變頻驅動的選用，使產品省電節能，而室外型自動扶梯能經受各種氣候環境條件考驗。The prestressed concrete ( pc ) track girders of straddle - type monorail transit system carryies both the beams and the tracks on which the train runs, so the fabrication must make use of a special formwork because of its high precision
摘要跨坐式單軌交通系統的預應力混凝土軌道梁既是承重梁又是車輛的軌道，其製作精度要求很高，必須採用專用的模板。3 beautiful cars control zhejiang systematic limited company is the core company that 3 flowers control a group automobile industry, be located in development of hangzhou economy technology garden of 3 gardeners course of study, cover an area of nearly 200 thousand m2, it is one takes the lead in rolling out aluminous reservoir in home, air conditioning of main production car expands a powerful person, reservoir the large - scale joint ventures of component of air conditioning of car of breed of hundreds kinds of two old series, norms, have of all kinds stuff now 800 more than person, year productivity amounts to 7 million, sale amounted to 160 million rmb 2006
浙江三花汽車控制系統有限公司是三花控股集團汽車產業的核心企業，坐落在杭州經濟技術開發區三花工業園，佔地近20萬m2 ，是一家在國內率先推出鋁儲液器，主要生產汽車空調膨脹閥、儲液器兩大系列、數百種規格品種汽車空調部件的大型合資企業，現擁有各類員工800餘人，年生產能力達700萬套， 2006年銷售額達1 . 6億人民幣。Then the system can use automatic constraint violation stabilization method for differential / algebraic equations to get state, displacement, velocity, acceleration of multibody system in different time points under external force
該系統採用絕對坐標方法自動建立多體系統動力學方程，其形式為微分代數混合方程，即euler - lagrange方程。利用約束違約自動穩定方法求得多體系統在外力的作用下姿態、位移、速度、加速度。Three kinds of modeling method in the flexible multi - bodied systematic dynamics were introduced, namely description of floating coordinate system, description of movable coordinate system and description of inertia coordinate system
摘要介紹了柔性多體系統動力學中的三類建模方法：浮動坐標系描述法、遷移坐標系描述法和慣性坐標系描述法。分享友人